Simulation of temperature field and influence of various parameters in sintering process
The 150 m2 sintering machine in a steel plant was taken as the research object,the CFD software FLUENT was used as the computing platform,and the actual parameters were input as information to simulate the sintering process of the enterprise.By comparing the measured and simulated values of the flue gas temperature in the bellows,the error and its source were analyzed,and the correctness of the sintering simulation was verified.The effects of ignition temperature,carbon content and porosity on the temperature distribution of the bed were investigated by single factor analysis.The results show that the ignition temperature can only affect the extreme temperature in the upper part of the bed,but has little effect on the sintering time and ore forming quality.When the carbon content increases from 4.2 mass％to 4.6 mass％,the extreme temperature at the bottom of the bed increases and the sintering time decreases,which is conducive to improving the quality and yield of sinter.When the porosity increases from 0.48 to 0.52,the gas-solid phase heat exchange reaction is intensified,the bed self-heat storage is strengthened,the vertical sintering speed is accelerated,and the sintering efficiency is improved.
sintering processFLUENTsimulation calculationbed temperature field
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